#643EB0#643EB0

#643EB0 is a mid, vivid violet. Relative luminance 0.093; OKLCH L 47.1% C 0.172 H 294.1°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#643EB0
RGB	rgb(100, 62, 176)
HSL	hsl(260, 48%, 47%)
HSV	hsv(260, 65%, 69%)
CMYK	cmyk(43.2%, 64.8%, 0%, 31%)
CIE-LAB	lab(36.53, 42.63, -55.10)
CIE-LCH	lch(36.53, 69.67, 307.73°)
OKLab	oklab(47.13% 0.0705 -0.1573)
OKLCH	oklch(47.13% 0.172 294.1)
XYZ	xyz(14.8125, 9.2888, 42.0784)
Luminance	0.0929 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EB0 #8AB03E

analogous

#3E51B0 #643EB0 #9D3EB0

triadic

#643EB0 #B0643E #3EB064

tetradic

#643EB0 #B03E51 #8AB03E #3EB09D

square

#643EB0 #B03E51 #8AB03E #3EB09D

split-complementary

#643EB0 #B09D3E #51B03E

monochromatic

#311E55 #4A2E83 #643EB0 #8563C8 #A890D8

Accessibility & contrast

On white

7.35

#643EB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#643EB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EB0

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EB0	#FFFFFF	#000000	##FFFFFF
##643EB0	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B4

Deuteranopia (green-blind)

#0054AE

Tritanopia (blue-blind)

#4F5971

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643eb0;
/* rgb */ color: rgb(100, 62, 176);
/* oklch */ color: oklch(47.1% 0.172 294.1);

Tailwind

colors: {
  custom: {
    50: '#9675c8',
    500: '#643eb0',
    950: '#000000',
  },
}

SCSS

$custom: #643eb0;
$custom-light: #9675c8;
$custom-dark: #000000;

JSON

{
  "hex": "#643eb0",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 176
  },
  "hsl": {
    "h": 260,
    "s": 47.899,
    "l": 46.667
  },
  "oklch": {
    "l": 0.47128,
    "c": 0.1724,
    "h": 294.1
  },
  "luminance": 0.09289
}

Semantic roles & 50–950 ramp

primary

#643EB0

secondary

#AFC387

accent

#D750AA

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643EB0

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →